Research on the Technology for DC CMT Welding of AZ31B Magnesium Alloy

Rui Ying Zhang; Yun Yan Hu; Jun Wang

doi:10.4028/www.scientific.net/AMM.483.18

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Research on the Technology for DC CMT Welding of AZ31B Magnesium Alloy
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 483Research on the Technology for DC CMT Welding of...

Research on the Technology for DC CMT Welding of AZ31B Magnesium Alloy

Abstract:

Orthogonal experiment method was used on DC CMT welding of AZ31B magnesium alloy sheet. The tensile test was carried out on the CMT5305 microcomputer control universal testing machine .The effect regular of welding current, arc length correction and welding speed on tensile strength and elongation was analyzed and acquired the optimal combination of process parameters. That is, welding current is 62A, arc length correction is +30% and welding speed is 50cm/min. The microhardness test on joints was carried out. Its found that the curve of microhardness is "W" shaped and the micro-hardness of HAZ is minimum and that of weld zone is maximum.

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Periodical:

Applied Mechanics and Materials (Volume 483)

Pages:

18-22

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.483.18

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Online since:

December 2013

Authors:

Rui Ying Zhang*, Yun Yan Hu, Jun Wang

Keywords:

AZ31B Magnesium Alloy, DC CMT, Orthogonal Experiment

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* - Corresponding Author

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